Probing Exoplanetary Chemistry with Ariel: Scientific Priorities and Observational Strategies

arXiv:2609.27622 · astro-ph.EP, astro-ph.IM · Submitted 2026-09-23 · Read on arXiv

astro-ph.EP, astro-ph.IM

Submitted: 2026-09-23

Updated: 2026-09-23

Terminology

• Metallicity — 52× in this paper · explained in 3 episodes
• Abundance — 42× in this paper · explained in 1 episode
• Mission Candidate Sample — 13× in this paper
• Core — 11× in this paper · explained in 2 episodes
• Degeneracy — 5× in this paper · explained in 3 episodes
• Trace — 4× in this paper · explained in 2 episodes
• Transmission spectroscopy — 4× in this paper · explained in 2 episodes
• Adam — 3× in this paper · explained in 2 episodes
• Chemistry Working Group — 3× in this paper
• Spectral Signature — 3× in this paper · explained in 2 episodes
• Benchmark — 2× in this paper · explained in 2 episodes
• Office Unified Model — 2× in this paper
• Red Giant Branch — 2× in this paper
• Adaptation — 1× in this paper · explained in 1 episode
• Asymptotic Giant Branch — 1× in this paper
• Generalization — 1× in this paper · explained in 13 episodes
• Polycyclic aromatic hydrocarbons (PAHs) — 1× in this paper · explained in 2 episodes
• Population Synthesis — 1× in this paper · explained in 2 episodes
• Robustness — 1× in this paper · explained in 5 episodes
• Transmission Spectroscopic Metric — 1× in this paper

Sources

• A metal-poor atmosphere with a hot interior for a young sub-Neptune progenitor: JWST/NIRSpec transmission spectrum of V1298 Tau b
• JWST Reveals CH$_4$, CO$_2$, and H$_2$O in a Metal-rich Miscible Atmosphere on a Two-Earth-Radius Exoplanet
• On the synergetic use of Ariel and JWST for exoplanet atmospheric science
• On Linking Planet Formation Models, Protoplanetary Disk Properties, and Mature Gas Giant Exoplanet Atmospheres
• Competing chemical signatures in the atmosphere of TOI-270 d: Inference of sulfur and carbon chemistry
• A reflective, metal-rich atmosphere for GJ 1214b from its JWST phase curve
• Metal-Enriched Atmospheres in Warm (Super- and Sub-)Neptunes Induced by Extreme Atmospheric Escape
• Volatile-rich evolution of molten super-Earth L 98-59 d
• Photochemical hazes dramatically alter temperature structure and atmospheric circulation in 3D simulations of hot Jupiters
• Ariel: Enabling planetary science across light-years

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• Two-stage disruption of resonant chains
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• Binary-lens Microlensing Degeneracy: Impact on Planetary Sensitivity and Mass-ratio Function
• Atmospheric escape fractionates secondary but not primary atmospheres
• The Occurrence Rate of Nearby Planetary Companions to Hot Jupiters